C#保存wps和office表格.数据源为list<T>类型,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Reflection;
using System.IO;

using ET;
using Microsoft.Office.Interop.Excel;
using System.Diagnostics;
using System.ComponentModel;

namespace src.Common
{
    public class SaveExcel
    {
        public static string Save<T>(List<T> list, string name, string saveWay, string tableHead)
        {
            try
            {
                SaveWPSExcel<T>(list, name, saveWay, tableHead);
                return "WPS保存成功";
                
            }
            catch (Exception ex)
            {
                try
                {
                    SaveOfficeExcel<T>(list, name, saveWay, tableHead);
                    return "office保存成功";
                }
                catch (Exception ex1)
                {
                    return "请安装office或WPS";
                }
            }
        }


        /// <summary>
        /// 保存wps表格
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="list">数据源列表</param>
        /// <param name="name">文件名</param>
        /// <param name="saveWay">保存路径</param>
        /// <param name="tableHead">表头</param>
        /// <returns></returns>
        public static string SaveWPSExcel<T>(List<T> list, string name, string saveWay, string tableHead)
        {
            string message = "";

            ET.ApplicationClass xlsApp = new ET.ApplicationClass();
            if (xlsApp == null)
            {
                message = "您没有安装WPS，请安装后再次使用！";
                return message;
            }
            ET.Application objExcel = new ET.Application();

            objExcel.Visible = false;

            object missing = System.Reflection.Missing.Value;
            workbook objBook = (workbook)objExcel.Workbooks.Add(missing);
            ET.Worksheet objSheet = (ET.Worksheet)objBook.Worksheets.get_Item(1);
            ET.Range objRange;

            Type t = typeof(T);

            string last = ToName(t.GetProperties().Count() - 1);

            int stateRow = 3;
            if (list.Count == 0)
            {
                message = "没有数据传入,无需保存";
            }
            else
            {
                objRange = objSheet.get_Range("A1", last + "1");
                objRange.Merge(true);
                objRange.HorizontalAlignment = ET.ETHAlign.etHAlignCenter;
                objRange = objSheet.get_Range("A1", missing);
                objRange.Value2 = tableHead;
                objRange.Font.Size = 20;
                objRange.Font.Bold = true;

                int titleIndex = 1;
                foreach (PropertyInfo p in t.GetProperties())
                {
                    DescriptionAttribute attr = (DescriptionAttribute)p.GetCustomAttributes(typeof(DescriptionAttribute), true).FirstOrDefault();
                    if (attr != null)
                    {
                        objSheet.Cells[(stateRow - 1), titleIndex++] = attr.Description;
                    }
                    else
                    {
                        objSheet.Cells[(stateRow - 1), titleIndex++] = p.Name;
                    }
                    //objSheet.Cells[(stateRow - 1), titleIndex++] =((DescriptionAttribute)Attribute.GetCustomAttribute(p,typeof(DescriptionAttribute))).Description;
                }

                int iRow = stateRow;
                foreach (T info in list)
                {
                    int icel = 1;
                    foreach (PropertyInfo p in t.GetProperties())
                    {
                        objSheet.Cells[iRow, icel++] = p.GetValue(info, null).ToString();
                    }
                    iRow++;
                    //int icel = 1;
                    //for (int iCol = 1; iCol < t.GetProperties().Count(); iCol++)
                    //{
                    //    objSheet.Cells[iRow, icel++] = dr[iCol].ToString();
                    //}
                    //iRow++;
                }
                objRange = objSheet.get_Range("A2", last + "2");
                objRange.Cells.Interior.Color = System.Drawing.Color.FromArgb(255, 204, 153).ToArgb();
                objRange.HorizontalAlignment = ET.ETHAlign.etHAlignCenter;

                objRange = objSheet.get_Range("A3", last + iRow.ToString());
                objRange.EntireColumn.AutoFit();
                objRange.HorizontalAlignment = ET.ETHAlign.etHAlignLeft;

                objRange = objSheet.get_Range("A" + (iRow + 1).ToString(), last + (iRow + 1).ToString());
                objRange.Merge(true);
                objRange.Value2 = DateTime.Now.ToString();
                objRange.HorizontalAlignment = ET.ETHAlign.etHAlignRight;
                objRange.Cells.Interior.Color = System.Drawing.Color.FromArgb(255, 204, 153).ToArgb();
            }

            objBook.Saved = true;
            DateTime dtime = DateTime.Now;
            string fileName = dtime.ToString("yyyy-MM-dd-HH-mm-ss") + ".xlsx";
            string baseWay = System.AppDomain.CurrentDomain.BaseDirectory;
            string fileWay = baseWay + saveWay + "\\" + name + fileName;
            objBook.SaveCopyAs(fileWay);
            objBook.Close(true, Type.Missing, Type.Missing);
            objExcel = null;
            xlsApp.Quit();
            xlsApp = null;
            //KillProcess("et");
            message = "已将信息保存到“" + saveWay + "”文件夹下";
            return message;
        }
        /// <summary>
        /// 保存excel表格
        /// </summary>
        /// <param name="table">表数据</param>
        /// <param name="name">保存的文件名</param>
        /// <param name="saveWay">保存路径</param>
        /// <param name="tableHead">表头内容</param>
        /// <param name="title">列名数组</param>
        /// <returns></returns>
        public static string SaveOfficeExcel<T>(List<T> list, string name, string saveWay, string tableHead)
        {
            string message = "";

            Microsoft.Office.Interop.Excel.ApplicationClass xlsApp = new Microsoft.Office.Interop.Excel.ApplicationClass();
            if (xlsApp == null)
            {
                message = "您没有安装Microsoft Offic Excel，请安装后再次使用！";
                return message;
            }

            Microsoft.Office.Interop.Excel.Application objExcel = new Microsoft.Office.Interop.Excel.Application();

            objExcel.Visible = false;

            object missing = System.Reflection.Missing.Value;
            Workbook objBook = objExcel.Workbooks.Add(missing);
            Microsoft.Office.Interop.Excel.Worksheet objSheet = (Microsoft.Office.Interop.Excel.Worksheet)objBook.Worksheets.get_Item(1);
            Microsoft.Office.Interop.Excel.Range objRange;

            Type t = typeof(T);
            string last = ToName(t.GetProperties().Count() - 1);

            int stateRow = 3;
            if (list.Count == 0)
            {
                message = "没有数据传入,无需保存";
            }
            else
            {
                objRange = objSheet.get_Range("A1", last + "1");
                objRange.Merge(0);
                objRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;
                objRange = objSheet.get_Range("A1", missing);
                objRange.Value2 = tableHead;
                objRange.Font.Size = 20;
                objRange.Font.Bold = true;

                int titleIndex = 1;
                foreach (PropertyInfo p in t.GetProperties())
                {
                    DescriptionAttribute attr = (DescriptionAttribute)p.GetCustomAttributes(typeof(DescriptionAttribute), true).FirstOrDefault();
                    if (attr != null)
                    {
                        objSheet.Cells[(stateRow - 1), titleIndex++] = attr.Description;
                    }
                    else
                    {
                        objSheet.Cells[(stateRow - 1), titleIndex++] = p.Name;
                    }
                }

                int iRow = stateRow;
                foreach (T info in list)
                {
                    int icel = 1;
                    foreach (PropertyInfo p in t.GetProperties())
                    {
                        objSheet.Cells[iRow, icel++] = p.GetValue(info, null);
                    }
                    iRow++;
                    //int icel = 1;
                    //for (int iCol = 1; iCol < t.GetProperties().Count(); iCol++)
                    //{
                    //    objSheet.Cells[iRow, icel++] = dr[iCol].ToString();
                    //}
                    //iRow++;
                }
                objRange = objSheet.get_Range("A2", last + "2");
                objRange.Cells.Interior.Color = System.Drawing.Color.FromArgb(255, 204, 153).ToArgb();
                objRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;

                objRange = objSheet.get_Range("A3", last + iRow.ToString());
                objRange.EntireColumn.AutoFit();
                objRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;

                objRange = objSheet.get_Range("A" + (iRow + 1).ToString(), last + (iRow + 1).ToString());
                objRange.Merge(0);
                objRange.Value2 = DateTime.Now.ToString();
                objRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignRight;
                objRange.Cells.Interior.Color = System.Drawing.Color.FromArgb(255, 204, 153).ToArgb();
            }

            objBook.Saved = true;
            DateTime dtime = DateTime.Now;
            string fileName = dtime.ToString("yyyy-MM-dd-HH-mm-ss") + ".xlsx";
            string baseWay = System.AppDomain.CurrentDomain.BaseDirectory;
            string fileWay = baseWay + saveWay + "\\" + name + fileName;
            objBook.SaveCopyAs(fileWay);
            objBook.Close(true, Type.Missing, Type.Missing);
            objExcel = null;
            xlsApp.Quit();
            xlsApp = null;
            KillProcess("Excel");
            message = "已将信息保存到“" + saveWay + "”文件夹下";
            return message;
        }
        /// <summary>
        /// 关闭excel
        /// </summary>
        /// <param name="processName"></param>
        private static void KillProcess(string processName)
        {
            System.Diagnostics.Process myproc = new System.Diagnostics.Process();
            //得到所有打开的进程   
            try
            {
                foreach (Process thisproc in Process.GetProcessesByName(processName))
                {
                    if (!thisproc.CloseMainWindow())
                    {
                        thisproc.Kill();
                    }
                }
            }
            catch (Exception Exc)
            {
                throw new Exception("", Exc);
            }
        }
        /// <summary>
        /// 将数字转换成字母
        /// </summary>
        /// <param name="index"></param>
        /// <returns></returns>
        public static string ToName(int index)
        {
            if (index < 0) { throw new Exception("invalid parameter"); }

            List<string> chars = new List<string>();
            do
            {
                if (chars.Count > 0) index--;
                chars.Insert(0, ((char)(index % 26 + (int)‘A‘)).ToString());
                index = (int)((index - index % 26) / 26);
            } while (index > 0);

            return String.Join(string.Empty, chars.ToArray());
        }
    }
}